Mark Hanson via EV wrote:
My 2015 Spark (predicessor to Bolt) off peak charges to 100%. Then if I don't drive it for a day it drops to 80% showing 20% kWh used even though no one drove it. Is it running the air conditioner and heater or something just to waste some energy to put the battery down to 80% for Lithium longevity? Wish it was like my 13' Leaf where I just set 80%.
Maybe their "state of charge" gauge is simply measuring battery voltage? If that were the case, the voltage right after charging is artificially high, and will fall as the "surface charge" dissipates. But the cells would still be fully charged.
It's likely that there are also "vampire" loads on the pack that draw power all the time (such as the balancing loads across each cell, or maybe a DC/DC converter to provide 12v power for the various computers. But a good design would keep these loads very small.
A seperate issue is the horn honks at odd times (like when following a bunch of Harley Hells Angels down the freeway). Or the last time in a police station. So I pulled the horn fuse and just put it in for annual vehicle inspections. Has someone bypassed the microprocessor that it goes through and can post how to wire direct? The wiring harness is really buried and the steering column is hard to take apart. The horn is hidden too. Maybe I'll just wire one of those old JC Whitney Aaoogah horns to a seperate button on the dash and bypass the buried wiring.
That *is* an odd one! I have read of similar cases in my ham magazines. A radio transmitter is installed in a car, and when they transmit, it causes odd things to happen (windows to roll down, etc.) Maybe the police station had a high-power radio transmitter for communications, or there was a ham using his transmitter in the motorcycle pack?
-- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
